Biggest ASX share price moves in October 2025, and why

In October 2025, 189 ASX share moves had a cause we could name. The biggest rise was Australian (ASM) at +67.6%, on sector flow news. The biggest fall was European (EUR) at −28.0%, on stake change news. Moves are the explained ones the site flagged that month, by the size of the day's move as it ended; the kind of news is the platform's reading of the news that day. General information only, not financial product advice.

Biggest rises (111 in the month)

  • ASMAustralianSector Flow · 14 Oct+67.6%
  • RMLResolutionSector Flow · 14 Oct+55.6%
  • EUREuropeanCapital Raise · 14 Oct+53.8%
  • FMLFocus MineralsEarnings Beat · 2 Oct+33.9%
  • RMLResolutionOperational · 20 Oct+33.7%
  • RMLResolutionRegulatory · 15 Oct+31.4%
  • ASMAustralianSector Flow · 13 Oct+30.1%
  • LRVLarvotto Res.Sector Flow · 15 Oct+29.4%
  • SRGSRG GlobalTakeover / M&A · 14 Oct+29.3%
  • RMLResolutionOperational · 29 Oct+28.8%

Biggest falls (78 in the month)

  • EUREuropeanStake Change · 20 Oct−28.0%
  • POLPolymetalsRegulatory · 31 Oct−26.1%
  • MKRManuka Res.Capital Raise · 21 Oct−23.7%
  • LINLindian Res.Regulatory · 27 Oct−23.0%
  • RMLResolutionOperational · 23 Oct−20.0%
  • ARUArafura RareCapital Raise · 29 Oct−20.0%
  • MTMMetalliumSector Flow · 17 Oct−17.7%
  • BAPBapcorGuidance Down · 20 Oct−17.7%
  • AVHAvita MedicalManagement · 17 Oct−16.0%
  • CSLCSL LimitedGuidance Down · 28 Oct−15.9%

Top 10 each way. Percentages are the move on the day it was flagged.

What kind of news

  • Sector Flow51 moves
  • Operational31 moves
  • Capital Raise17 moves
  • Commodity12 moves
  • Contract11 moves
  • Stake Change10 moves
  • Takeover / M&A10 moves
  • Unknown9 moves

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